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[Bug target/69463] wrong code with -O1 and vector arithmetics @ x86_64
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 29 Jan 2016 18:44:07 +0000
- Subject: [Bug target/69463] wrong code with -O1 and vector arithmetics @ x86_64
- Auto-submitted: auto-generated
- References: <bug-69463-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69463
--- Comment #2 from UroÅ Bizjak <ubizjak at gmail dot com> ---
(In reply to Zdenek Sojka from comment #1)
> On trunk, this got fixed between r232939 (fails) and r232986 (OK). r232955
> fixed PR69459, so this might be a duplicate.
There are actually two bugs in the compiler. One is PR69459, now fixed in 4.9+,
the other is PR69551, which needs to be backported to 4.9 branch.
Until PR69551 fix is backported to 4.9 branch, you can trigger PR69551 with -O2
-msse -mno-sse2.